You can use Xsplit, where you can pay for it or do other means to use it freely.

I personally use FFsplit. Works great and doesn't use as many resources as Xsplit, which is quite surprising. Check out my twitch if you'd like to know the quality, my last few streams were in 1080p.

Both programs work similarly. I'd be willing to help you out, just not at the moment because I'm taking a nap in a few minutes. Regardless, it's easy, so Google is your friend.

The only problem with FFsplit right now is that you cannot choose how high you want to quality to be, but it's an open source project that's only getting better.---PSN: NaRD2ndG | Steam: http://steamcommunity.com/id/nard2ndg | www.twitch.tv/nard2ndgNow streaming: P4: Arena, Bayonetta, League of Legends